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Advanced caching configuration is one of the most impactful performance optimisations available, yet most deployments leave significant cache efficiency on the table. Hellenic Technologies implements a comprehensive caching strategy for every client that covers Cloudflare’s edge cache, origin-level caching, and application-level cache layers — working together to minimise latency and origin load. Cloudflare Cache Rules replace the legacy Page Rules system with a more powerful expression-based configuration. We use Cache Rules to apply custom edge TTLs that override incorrect cache-control headers from the origin, configure stale-while-revalidate behaviour so users always receive a fast cached response even during revalidation, and implement cache bypass conditions for personalised or authenticated content. The result is typically a cache hit ratio above 80% for content-heavy sites. For dynamic content that cannot be fully cached, we implement Cloudflare’s Cache Reserve (for Enterprise) to extend cache durability using R2 object storage, reducing the frequency of cache misses during traffic spikes. On the origin side, we pair Cloudflare’s edge cache with Nginx micro-caching or Varnish to ensure that even cache misses are served from fast in-memory origin caches rather than hitting the application stack. Advanced caching services:
  • Cache Rules configuration for static assets, pages, and API responses
  • Edge TTL and browser TTL tuning to maximise cache offload
  • Stale-while-revalidate and stale-if-error configuration
  • Cache bypass rules for cart, checkout, and authenticated pages
  • Cache Reserve setup and R2 bucket configuration (Enterprise)
  • Cache hit ratio analysis and optimisation recommendations
  • Origin cache header auditing and correction
  • Vary header management for multi-language and device-responsive content
  • Cache purge automation via deployment hooks and Cloudflare API